code: def check_valid_response(self, res):
      if res.resp_type == RESPONSE_TYPE.TABLE:
          assert (
              res.data_frame is not None
          ), "expected to have some data, but got None"
      assert (
          res.error_code == 0
      ), f"expected to have zero error_code, but got {res.error_code}"
      assert (
          res.error_message is None
      ), f"expected to have None in error message, but got {res.error_message}"
  
file_path: mindsdb/tests/handler_tests/test_postgres_handler.py
imports: import time
  import pytest
  import docker
  from mindsdb.integrations.handlers.postgres_handler.postgres_handler import PostgresHandler
  from mindsdb.api.executor.data_types.response_type import RESPONSE_TYPE
label_desc: Use image node_id 9 for calling the TestPostgresHandler obj's underlying member method code with example usage: obj.check_valid_response(res) without return types